package com.lab.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class HttpFilter implements Filter{
	public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {  
        HttpServletResponse response = (HttpServletResponse) res; 
        response.setHeader("Access-Control-Allow-Origin", "*");  
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, PUT, OPTIONS, DELETE");  
        response.setHeader("Access-Control-Max-Age", "3600");  
        response.setHeader("Access-Control-Allow-Headers", "x-requested-with, Content-Type");  
        response.setHeader("Access-Control-Allow-Credentials", "true");  
        chain.doFilter(req, res);  
    }  

    public void init(FilterConfig filterConfig) {}  

    public void destroy() {} 

}
